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RO A second session is usually planning, not repair. Three quite different situations lead to one, and only the third is a correction.
| Reason | What it means | When |
|---|---|---|
| Staged by design | The plan always needed two passes | Once the first has fully grown |
| Native loss continued | Hair around the grafts thinned further | Whenever the new gap becomes visible |
| Yield fell short | Too few of the first grafts grew | After a full twelve-month assessment |
The interval is set by two clocks, not by convenience. The donor needs time for extraction points to settle so the next harvest is judged against real remaining density, and the recipient area needs a complete growth cycle before anyone can say what it actually holds. Operating again before both have run means planning on incomplete information.
Staging is not a way to sell twice. Splitting a plan lets the second pass be placed between the survivors of the first, at an angle and density chosen with the result visible — something no single session can do, because in a single session nothing has grown yet.
The limit is the donor, not the number of operations. There is no fixed maximum count of procedures; there is a fixed number of follicular units, and every session spends part of it permanently.
Related terms
For how a multi-stage plan is sequenced, see the hair transplant journey. For corrective work after another clinic, see revision hair transplant.
